AviolentambushendswithBlytheDarrowbeingabductedbythreemen.Heroldersister,Beth,knowsit'sherfault.
ThethreemenarethecorruptBishopbrothers:Terrence,theeldest.Lawrence,themiddlechild.AndSpencer,theyoungest.Thesemenarenostrangers.TerrenceandBethhadbeenmarriedbutshedivorcedhimwhenheconfessedhewasinlovewithheryoungersister.
YearslaterBethhasnochoicebuttoturntoherex-husbandforafavoronlyhecangrant,promisingshecanpayhimback.HeagreesontheconditionofusingBlytheascollateralwhichBethreluctantlyaccepts.Needlesstosay,shemissesthedeadline.
Recognizingthemenwhohavetakenher,Blytheknowswhichbuttonstopressandwhichbuttonstoavoid.ButasTerrencetriestoclosein,sodohisbrothers.MeanwhileBeth,unabletoturntotheauthorities,knowsheronlychanceofsavinghersisterliesintheweakestlink:adouble-crossingBishop.
Anditbecomesapparentthatbloodisnotalwaysthickerthanwater.